Be careful with your second DAC Output, A lot of us are blowing out the DAC.

As most DACs will be connecting to amplifiers it would make sense to modify a future version of the board to include a series current limiting resistor to protect these two high value pins - high value as in there are only two of them andf or some, they are the main reason for buying a Due.

From my experience and as documented:The two DAC output are addressed as DAC0 and DAC1!Unfortunately the common description of the board functions mentions DAC1 and DAC2 which might lead to misunderstandings.both DAC seem to work only in a range of 1/6 .. 5/6 (0.55..2.75V) of the max. voltage of 3300mV

I also wonder how to write to the second DAC and I agree that it is incredibly difficult to find anything about it.

However, for me the reason is not that I have blown out my first DAC, but I want to experiment addressing both DACs at the same time. Like for true stereo output for example. Unfortunately that means that mcleung's method won't help.

Does anyone have an idea on how to directly address the individual DACs using dacc_write_conversion_data? Or is there any other way without using slow analogWrite()?

I also wonder how to write to the second DAC and I agree that it is incredibly difficult to find anything about it.

However, for me the reason is not that I have blown out my first DAC, but I want to experiment addressing both DACs at the same time. Like for true stereo output for example. Unfortunately that means that mcleung's method won't help.

Does anyone have an idea on how to directly address the individual DACs using dacc_write_conversion_data? Or is there any other way without using slow analogWrite()?

Thanks a lot,dodgerts

Here you can find some information about the functions of the dac: http://asf.atmel.com/docs/latest/sam3x/html/group__sam__drivers__dacc__group.html